@mixin flex {
  display: -webkit-box;
  display: -moz-box;
  display: -ms-flexbox;
  display: -webkit-flex;
  display: flex;

  -webkit-flex-flow: row nowrap;
  flex-flow: row nowrap;

}

@mixin start-flex {
  -webkit-box-align: center;
  -moz-box-align: center;
  -ms-flex-align: center;
  -webkit-align-items: center;
  align-items: center;

  -webkit-box-pack: start;
  -moz-box-pack: start;
  -ms-flex-pack: start;
  -webkit-justify-content: flex-start;
  justify-content: flex-start;

  -webkit-align-self: flex-start;
  align-self: flex-start;
}